Browsing Faculty of Natural and Agricultural Sciences by Subject "Insect resistance management"
Now showing items 1-6 of 6
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Efficacy of Bt Maize for control of Spodoptera frugiperda (Lepidoptera: Noctuidae) in South Africa
(Oxford Univ Press, 2019)Spodoptera frugiperda (J.E. Smith) is an invasive pest species that threatens maize production by small holder farmers in Africa. Bt maize that express Cry proteins have been used effectively for control of this pest in ... -
Monitoring resistance to Bt maize in field populations of Busseola fusca (Fuller) (Lepidoptera: Noctuidae) from smallholder farms in the Eastern Cape Province of South Africa
(Entomological Society of Southern Africa, 2017)Post-release monitoring of transgenic Bt maize fields for resistant pest populations is an important activity that will contribute to early identification and mitigation of resistance evolution by target pests. An effective ... -
No fitness costs associated with resistance of Busseola fusca (Lepidoptera: Noctuidae) to genetically modified Bt maize
(Elsevier, 2014)A concern regarding planting of Bt crops is that their widespread cultivation could lead to evolution of insect resistance to Bt toxins. In South Africa, the noctuid maize stem borer (Busseola fusca [Fuller]), is resistant ... -
Preference of Bt‐resistant and susceptible Busseola fusca moths and larvae for Bt and non‐Bt maize
(Wiley, 2019)The sustainability of genetically engineered insecticidal Bacillus thuringiensis Berliner (Bt) maize, Zea mays L. (Poaceae), is threatened by the evolution of resistance by target pest species. Several Lepidoptera species ... -
Resistance status of Busseola fusca (Lepidoptera: Noctuidae) populations to single- and stacked-gene Bt maize in South Africa
(Oxford Univ Press, 2019)Transgenic Bt maize expressing Cry insecticidal δ-endotoxins of Bacillus thuringiensis has been cultivated in South Africa for the control of Busseola fusca since 1998. Busseola fusca is resistant to Cry1Ab Bt maize at ... -
Transcriptome and differentially expressed genes of Busseola fusca (Lepidoptera: Noctuidae) larvae challenged with Cry1Ab toxin
(Elsevier, 2019)Busseola fusca (Fuller) (Lepidoptera: Noctuidae), a major insect pest of maize in sub-Saharan Africa, has de-veloped high levels of non-recessive resistance to Cry1Ab toxin expressed in genetically modified Bt maize.Multiple ...